from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from django.utils.translation import ugettext as _
from django.http import Http404

from .models import Problem, Cislo, Reseni, VysledkyKCislu, Nastaveni, Rocnik, Soustredeni, Organizator


def AktualniZadaniView(request):
    nastaveni = get_object_or_404(Nastaveni)
    return render(request, 'seminar/zadani/AktualniZadani.html',
            {'nastaveni' : nastaveni,
                },
            )

### Co je M&M

class CojemamOrganizatoriView(generic.ListView):
    model = Organizator
    template_name='seminar/cojemam/organizatori.html'

### Archiv

class CislaView(generic.ListView):
    model = Rocnik
    template_name='seminar/archiv/cisla.html'

class RocnikView(generic.DetailView):
    model = Rocnik
    template_name = 'seminar/archiv/rocnik.html'

    # Vlastni ziskavani objektu z databaze podle (Rocnik.rocnik)
    def get_object(self, queryset=None):
        if queryset is None:
            queryset = self.get_queryset()
        rocnik_arg = self.kwargs.get('rocnik')
        queryset = queryset.filter(rocnik=rocnik_arg)

        try:
            obj = queryset.get()
        except queryset.model.DoesNotExist:
            raise Http404(_("No %(verbose_name)s found matching the query") %
                          {'verbose_name': queryset.model._meta.verbose_name})
        return obj

class ProblemView(generic.DetailView):
    model = Problem
    template_name = 'seminar/archiv/problem.html'

class RadekVysledkovky(object):
    pass

class CisloView(generic.DetailView):
    model = Cislo
    template_name = 'seminar/archiv/cislo.html'

    # Vlastni ziskavani objektu z databaze podle (Rocnik.rocnik)
    def get_object(self, queryset=None):
        if queryset is None:
            queryset = self.get_queryset()
        rocnik_arg = self.kwargs.get('rocnik')
        cislo_arg = self.kwargs.get('cislo')
        queryset = queryset.filter(rocnik__rocnik=rocnik_arg, cislo=cislo_arg)

        try:
            obj = queryset.get()
        except queryset.model.DoesNotExist:
            raise Http404(_("No %(verbose_name)s found matching the query") %
                          {'verbose_name': queryset.model._meta.verbose_name})
        return obj

    def get_context_data(self, **kwargs):
        context = super(CisloView, self).get_context_data(**kwargs)

        # Vysledky k cislu: seznam objektu typu (cislo, resitel, body [v tom cisle], body_celkem [od zac. rocniku])
        vysledky = VysledkyKCislu.objects.filter(cislo = context['cislo']).order_by('-body_celkem').select_related("resitel")

        reseni = Reseni.objects.filter(cislo_body = context['cislo']).select_related("resitel")

        # seznam problemu s nejakymi body v tomto cisle
        problemy = sorted(list(set([r.problem for r in reseni])), key=lambda x:(0 if x.typ==Problem.TYP_ULOHA else 1,x.kod))
        # cislo sloupecku pro problem (inverzni funkce)
        problem_index = {}
        for i in range(len(problemy)):
            problem_index[problemy[i].id] = i

        # pomocna mapa Resitel: RadekVysledkovky
        vysledky_resitele = {}
        # radky vysledkovky, seznam objektu RadekVysledkovky
        vysledkovka = []
        # posledni pocet bodu, pro detekci stejnych mist
        posledni_body = 100000

        for vi in range(len(vysledky)):
            v = vysledky[vi]
            tv = RadekVysledkovky()
            tv.resitel = v.resitel
            tv.vysledek = v
            tv.body = ['']*len(problemy) # misto pro body za jednotlive uloy
            tv.poradi = ''
            if posledni_body > v.body_celkem:
                posledni_body = v.body_celkem
                tv.poradi = vi + 1
            vysledky_resitele[v.resitel.id] = tv
            vysledkovka.append(tv)

        # doplneni bodu za jednotliva reseni lidi do RadekVysledkovky.body
        for r in reseni:
            vysledky_resitele[r.resitel.id].body[problem_index[r.problem.id]] = r.body

        context['vysledkovka'] = vysledkovka
        context['problemy'] = problemy
        return context

### Soustredeni

class SoustredeniListView(generic.ListView):
    model = Soustredeni
    template_name = 'seminar/soustredeni/seznam_soustredeni.html'

class SoustredeniView(generic.DetailView):
    model = Soustredeni
    template_name = 'seminar/archiv/soustredeni.html'